Monitor Shows No Display When Graphics Card Is Plugged In

Hello everyone

[Edited]

I am attempting to repair an old Alienware Aurora series desktop. From what I can tell, the graphics card was supposed to be a GeForce 8600 GTS but it turns out it is actually a GeForce GTX 460... I believe that was a modification later added in because I believe the GTX 460 was made after the computer was purchased, also because it didn't appear on the spec list I got my info from. This is why this thread requires edits

I should mention that the monitor I tested it on fits with another GTX series card and works fine. The computer's owner isn't too keen on letting me attempt to use my card to see if it is truly dead or not.

Before I attempt to remove it, are all my connections inside and secure?
*Sorry for the bad quality, my camera doesn't do well without being in daylight

Here's the card, fan side down the way it is currently installed ;
http://i.imgur.com/HfRSXGw.jpg

These here are two of the sets of wires I was talking about. They appear to feed into the circuit board thingy on top
http://i.imgur.com/P1PkW6F.jpg

The third is down here, my initial guess is that it's for fan power. The fan works fine, by the way.
http://i.imgur.com/rqMvYZv.jpg

I have a bunch of disconnected wires, too. I initially thought they were for fans, but they appear to be for something else entirely, as every fan in the system functions. I cannot see anywhere on the card where these may plug in, that said I cannot inspect the card because I cannot remove it.
http://i.imgur.com/GsPLY37.jpg

My attempt at removal failed... I need help.

I did try to remove the card. I undid the screws near the back where the outputs are, but the card is still stuck to the motherboard by something I cannot see and I can't get it out. I need help because I looked it up and all sorts of other systems have a simple slider to get the card out but this doesn't appear to have anything.

If more pictures are required for the mounting, I will do my best to get more tomorrow but I can't really get back down to the basement where it is and snap more photos without waking everyone up in the process.



Thanks for any help

 
[strike]Bump[/strike]

I read around on similar issues and all of them said that you need to uninstall graphics drivers and reinstall them, that there may be an improper connection (which I am hoping is the case, as that is a super easy fix) or that it is not in the right slot.

I cannot see anything at all after boot.
Prior to plugging into the computer, the monitor will say no signal

Upon plugging in, the monitor keeps doing it's analog digital analog digital thing until it falls asleep. Back in this pc's day it would do that when the computer powered off or fell asleep.

Is there any way at all to still see anything without this card? I'm genuinely confused as to how one can uninstall the drivers and download new ones without being able to see it on the monitor.